I went to appliancepartspros.com and searched "dishwasher rack rollers" and found mine immediately using only the make of the machine. It took me another 5 minutes to order the parts and check out.
I received the parts in two days using the most economical shipping method. It took less than ten minutes to make my dishwasher as good as new!
A very simple job made more simple by using appliancepartspro.com.

Be sure to shut off the power and water before you start this repair.
Removed lower panel with 1/4" nut driver. Ordered and replaced both springs.Right door spring has unhindered access and easily replaced. I temporarily disconnected the water line at the valve and removed the valve for better access to the spring on the left.